1 files changed, 92 insertions, 0 deletions
diff --git a/third_party/llvm-project/include/llvm/Object/Error.h b/third_party/llvm-project/include/llvm/Object/Error.h
new file mode 100644
index 000000000..b7bbf06fc
--- /dev/null
+++ b/third_party/llvm-project/include/llvm/Object/Error.h
@@ -0,0 +1,92 @@
+//===- Error.h - system_error extensions for Object -------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This declares a new error_category for the Object library.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_OBJECT_ERROR_H
+#define LLVM_OBJECT_ERROR_H
+
+#include "llvm/ADT/Twine.h"
+#include "llvm/Support/Error.h"
+#include <system_error>
+
+namespace llvm {
+namespace object {
+
+class Binary;
+
+const std::error_category &object_category();
+
+enum class object_error {
+  // Error code 0 is absent. Use std::error_code() instead.
+  arch_not_found = 1,
+  invalid_file_type,
+  parse_failed,
+  unexpected_eof,
+  string_table_non_null_end,
+  invalid_section_index,
+  bitcode_section_not_found,
+  invalid_symbol_index,
+};
+
+inline std::error_code make_error_code(object_error e) {
+  return std::error_code(static_cast<int>(e), object_category());
+}
+
+/// Base class for all errors indicating malformed binary files.
+///
+/// Having a subclass for all malformed binary files allows archive-walking
+/// code to skip malformed files without having to understand every possible
+/// way that a binary file might be malformed.
+///
+/// Currently inherits from ECError for easy interoperability with
+/// std::error_code, but this will be removed in the future.
+class BinaryError : public ErrorInfo<BinaryError, ECError> {
+  virtual void anchor();
+public:
+  static char ID;
+  BinaryError() {
+    // Default to parse_failed, can be overridden with setErrorCode.
+    setErrorCode(make_error_code(object_error::parse_failed));
+  }
+};
+
+/// Generic binary error.
+///
+/// For errors that don't require their own specific sub-error (most errors)
+/// this class can be used to describe the error via a string message.
+class GenericBinaryError : public ErrorInfo<GenericBinaryError, BinaryError> {
+public:
+  static char ID;
+  GenericBinaryError(Twine Msg);
+  GenericBinaryError(Twine Msg, object_error ECOverride);
+  const std::string &getMessage() const { return Msg; }
+  void log(raw_ostream &OS) const override;
+private:
+  std::string Msg;
+};
+
+/// isNotObjectErrorInvalidFileType() is used when looping through the children
+/// of an archive after calling getAsBinary() on the child and it returns an
+/// llvm::Error.  In the cases we want to loop through the children and ignore the
+/// non-objects in the archive this is used to test the error to see if an
+/// error() function needs to called on the llvm::Error.
+Error isNotObjectErrorInvalidFileType(llvm::Error Err);
+
+} // end namespace object.
+
+} // end namespace llvm.
+
+namespace std {
+template <>
+struct is_error_code_enum<llvm::object::object_error> : std::true_type {};
+}
+
+#endif